feat(*): add node installer dir and workflow #44

Job	Run time
rustfmt	8m 12s
rustfmt	8m 12s
build / build (ubuntu-latest, x86_64, spin, v2)	41m 8s
build / build (ubuntu-latest, x86_64, spin, v2)	41m 8s
build-wasm-images / build_and_push (examples/spin-rust-hello, images/spin)	2m 1s
build-wasm-images / build_and_push (examples/spin-rust-hello, images/spin)	2m 1s
build / build (ubuntu-latest, aarch64, spin, v2)	42m 56s
build / build (ubuntu-latest, aarch64, spin, v2)	42m 56s
build-wasm-images / build_and_push (examples/spin-dotnet-hello, images/spin_dotnet)	1m 5s
build-wasm-images / build_and_push (examples/spin-dotnet-hello, images/spin_dotnet)	1m 5s
build-wasm-images / build_and_push (examples/spin-inbound-redis, images/spin-inbound-redis)	1m 22s
build-wasm-images / build_and_push (examples/spin-inbound-redis, images/spin-inbound-redis)	1m 22s
build-wasm-images / build_and_push (examples/spin-outbound-redis, images/spin-outbound-redis)	1m 20s
build-wasm-images / build_and_push (examples/spin-outbound-redis, images/spin-outbound-redis)	1m 20s
test	30m 31s
test	17m 52s
publish-node-installer-image	0s
publish-node-installer-image	0s
	4h 4m 31s

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